Sylvania



Apr. 17, 1923.

T. BRANsoN REENFORCING FABRIC FOR TIRES Filed Dec. 18 1919 v /NvE/vroR: Tiznas Branson;

W/TNESSES AT RNEYS.

Patented Apr. 17, 1923.

UNITED STATES PATENT OFFICE.

THOMAS BRANSON, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO SIBSON &

STERN, INC., OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENN- SYLVANIA.

REENFORCING FABRIC FOR TIRES.

Application filed December 18, 1919.

Z 1o all 10i/tom it may concern.'

Be it known that I, 'Il-IoMAs BRANsoN,

a citizen of the United States, residing in Philadelphia, in the county of Philadelphia 5 and State of Pennsylvania, have invented certain. new and useful Improvements in Reinforcing Fabrics for Tires,whereof the following is a specification, reference being had to the accompanying drawings.

The invention relates to reinforcing fabric more particularly useful in the manufacture of vehicle tires of the cord7 type, and is intended as an improvement over the structure shown'and described in a Patent 1,300,696 granted me under date of April 15, 1919.

In tires of the class referred to, reenforcement is obtained by a series of cords, which, when incorporated in the tire, run longitu-` dinally of the structure.

The primary object of the invention is to provide a fabric in which the reenforcing cords are predominant, and held in proper relative positions against displacement by a ground work of extremely light binding threads, of such gauge, as to be only -suiciently strong to prevent disintegration of the fabric in ordinary handling incidental to the process of tire manufacture, and moreover, so interknitted with the cords as to permit absolute individual freedom of self adjustment, both longitudinally and laterally when the tension is placed upon the fabric.

The invention is also directed to a fabric of the specified character which is of such construction as to be capable of being cut longitudinally into strips, which are complete in themselves and proof against ravelling. i 40 The specific structure embodying the characteristics above pointed out will be better understood from the detailed description which follows. The illustration represents more or less diagrammatically, a fragment of a fabric structure conveniently embodying my invention.

In this illustration, the reinforcing cords are designated respectively at 1, 2, 3, 4, 5, 6 and 7. These run longitudinally of the fabric, and are incorporated therein by a ground work formed through the interknitting of a number of binder threads 8, 9, 10 and 11, which are comparatively, of an extremely light ganga-possessing onlv sutcg'ent ten- Serial No. 345,824.

Sile strength to insure integrity of the fabric under ordinary circumstances. Of the binder threads shown, those marked 8 and 10, have been stippled so as to be conveniently distinguished from the others. Following, for example, the course of the thread 10, upwards from the bottom of the illustration, it will be noted that it is first formed into a chain loop 12, which embraces the cord 5, and is thence tied by a plain secondary loop 13, to a chainloop 14k, formed about the cord 1, by another binder thread. Following still further, it will be observed that the thread 10, leads from the loop 12, and is thence formed into a second chain loop 15, which encircles the cord f1, and is thereafter tied by means of another secondary loop 16, to

a chain loop 17, of the binder thread 9, em- 1 bracing the cord 3. Beyond loop 16, thread 10, is again formed into a chain loop 18, embracing the cord 5, in a. manner similar to loop 12. `From this point on, the proc ess is simply duplicated. By similarly following the course of any of the other binder threads, it will become apparent that they follow the same predetermined rule.

From the above, it will be seen that each binder thread zigzag-s back and forth from one to another oftwo adjacent cords of the series, which it embraces, thus serving as a common tie for them independently of adjacent binders and that it is also connected by a series of secondary loops, disposed intermediate the embracing chain loops, to corresponding chain loops of adjacent binders and hence to the cords at either side of those above mentioned. As shown, the secondary loops are inter-linked with the chain loops that embrace the said cords. By this arrangement, I not only effect economy of material, but what is of more importance, am enabled to produce a more satisfactory product from the commercial standpoint, than the structure of the patent previously referred to, since in the present instance, only negligible portion of the ground work intervenes between the longitudinally running` cords, thereby permitting greater lateral compaction when placed under tension during the manufacture of tires. Furthermore, the inherent characteristics of the structure are such as to permit severance into strips of various widths, each of such strips being complete in itself and proof against revel* ling, since the embracing loops oit each binder fare complete and {are formed lindependently of adjacent binders.

It Will be understood by those skilled in textile manufacture, that the `fabric embodying my invention may be readily produced upon an ordinary knitting loom, by

a predetermined ordering of the shifting 'of the guides for the cords and binder threads, With respect to the knitting needles.

Having thus described my invention, I claim:

l. A textile structure of the character described, including in 'combinati'on, a series ofcords entend-ing longitudinally of the Afabric; "and a ground Work comprising a num ber of -interconinected binder threads each its 'entre ng leaps Completely surrounding and tying together tivo I'adjacent C'r'S @fthe Ser-ies.

12 A textile ystructure o'fthe character de- `ed-iI-Iclu,di-nig, in combinati'on7 a series ords extending longitudinally of the fabri'c, and a .ground Work comprising a number fof interconnected binder threads each seriing, by 'means of embracing loo-ps, to

tie ftwoiadj'acent 'cords oft the series together independently ofadjacent binder threads connecting fa pair of their adjoining cords.

-A textile structure ofthe character described including, in combination, 'a series of "cords extending longitudinali y of the fabric; and a ground Work comprising a number of `interconnected binder threads each" forming complete embracing loops aboutan'd tying `together two adjacent cords of the series, and "each also connected by secondary lopssto tvto lcords at veither side ot those first mentioned,

'4. A textile structure `of the character described including, in combination, a series cords extending longitudinally of the fabric; and -a ground Work comprising a numberof vbinder threads each "serving, by means oi embracing loops, to tie together two adjacent cords of the series independently of adjacent binders connect adjoining pairs el? cords', and each also connected to adjacent binders by means of secondary loops.v

' `5. A textile structure of the characterv described including, in combinatioma series of cordsextending longitudinally of the fabric; and a ground Work comprising a `number of interconnected binder threads each forming complete embracing vloops about and'tyingltogeth'er tvvo adjacent cords 'of the series, and each also having secondary loops interlinled with corresponding binder loops embracing the cords at either side ci' those first mentioned.

6. A teXti-le structure of the character dcscribed including, in combination, a series of cords extending longitudinally of the fabric; and a ground Work comprising a num,- ber of binder threads eafch serving, by means of embracing chain loops, "to tie two adjacent cords of the series independently of ladjacent binders, and each. also united ybymeans oi secondary loops to the corresponding chain loops of the-adjacent binders. Y

7. A textile structure of the character described including, in combination, la series of cords running longitudinally 'of the tabri'c; and a ground W'or'lr comprising "a number of interconnected binder threads nig zag'ged lfrom :one to `another of tryo adjacent cords 'Iothe series and'binding the ksaine by embracing loops. A l' l Si. A vtextile structure of the character describedincluding. in combination, aseries of cordsrunning longitudinally of thevfabric; anda "ground Worlr comprising aV num ber of binder thi-cade zigzag'ged flironi one to another of two adjacent cords oit the series, and bi-I'Idifng` 'the :saine 'by means ott embracing loops. each lot said binding threads hai/1Y ing also 't'orme'd in them, in alternation {vit-h said' "embracing loo-ps.;` secondary loops tied to the ein'bracing- `looV s ot a'df'acent binr'tler threads.-

9: In a fabric coimirising` contiguously running cords, transverse `binder threads connecting together 4adjacent pairs "oft 'the cords by loops, eacli lolop completely embracing` one et the cords only;y and interlo'opin'g portions torined` orl the bin-dei` threadsand connectinfg` one of said loops ot' one pair ot cords Ywith a loop of an adjacent pair oit' cordstobind the pairs 'of cords together to form the tabrib.

n testimony whereof, I have hereunto signed my naine .at Philadelphia, Pennsyt Vania, this 13th day of December, i919." THOMAS `BRA NS(`):

Witnesses: f

latins H. BEM,r E. L. FULLnR'roN.

Cil

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